We do not have the Opamp component in the catalog yet. However, we do provide the CTBm (opamp) PDL with PDL 3.0.1. You can add the files to your project manually from "C:\Program Files (x86)\Cypress\PDL\3.0.1\drivers\peripheral\ctb\" folder and start using the CTBm through the APIs provided. The PDL documentation does include the details about the CTBm APIs.

The final/production release of PSoC Creator 4.2 will have the Opamp component for PSoC 6.